Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Nomeie a renda líquida para a porcentagem de renda mantida sendo 40.6%
 ###Tabelas: CREATE TABLE dunedin_city (dunedin_city_id AUTO_INCREMENT PRIMARY KEY, Name VARCHAR, Years VARCHAR, Gender VARCHAR, Area VARCHAR, Authority VARCHAR, Decile INT, Roll INT) CREATE TABLE waterford_and_limerick_railway (waterford_and_limerick_railway_id AUTO_INCREMENT PRIMARY KEY, Year VARCHAR, Type VARCHAR, Nos. VARCHAR, GSWR Class INT, GSWR Nos. VARCHAR, GSR Class VARCHAR, Inchicore Class VARCHAR, Withdrawn VARCHAR) CREATE TABLE scaled_taxation (scaled_taxation_id AUTO_INCREMENT PRIMARY KEY, Currency Bracket: VARCHAR, Dollars Taxed in Bracket: VARCHAR, Rate: VARCHAR, Taxes From Bracket: VARCHAR, After Tax Income: VARCHAR, Percentage of Income Kept: VARCHAR) CREATE TABLE eliminated_contestants'_weigh_in (eliminated_contestants'_weigh_in_id AUTO_INCREMENT PRIMARY KEY, Contestant VARCHAR, Starting Weight (kg) VARCHAR, Final Weight (kg) VARCHAR, Weight Lost (kg) VARCHAR, Percentage Lost VARCHAR, Position (out of Eliminated Contestants) VARCHAR) CREATE TABLE fourth_round (fourth_round_id AUTO_INCREMENT PRIMARY KEY, Pick INT, Team VARCHAR, Player VARCHAR, Position VARCHAR, College VARCHAR)  
SELECT After Tax Income: FROM scaled_taxation WHERE Percentage of Income Kept: = 40.6%